html, body, ul, li, ol, dl, dd, dt, p, h1, h2, h3, h4, h5, h6, form, fieldset, legend, img, input, figure, figcaption {
    margin: 0;
    padding: 0;
}

h1, h2, h3, h4, h5, h6 {
    font-size: 16px;
    font-weight: normal;
}

ul, ol, li {
    list-style: none;
}

b, strong {
    font-weight: normal;
}

em, i {
    font-style: normal;
}

a, u {
    text-decoration: none;
}

img {
    border: 0;
    display: block;
}

input {
    outline: none;
}

* {
    box-sizing: border-box;
}

header {
    background: #323232;
    height: 40px;
    line-height: 40px;

}

header .top_nav {
    width: 1290px;
    margin: 0 auto;
}

header a {
    color: #91aea6;
    margin-right: 10px;
    font-size: 14px;

}

header a:hover {
    color: #fff;
}

header .top_nav .left {
    float: left;
    margin-right: 260px;
}

header .top_nav .right {
    float: left
}

header .top_nav .right ul li {
    float: left
}
header .top_nav .right ul li:nth-of-type(4){
    background:#000000;
    width: 110px;
    height: 40px;
    padding-left: 10px;

}
header .top_nav .right ul li img{
    padding-top: 7px;
    width: 25px;
    height: 25px;
    display: inline-block;

}

.header_nav {

    overflow: hidden;


    width: 1290px;
    margin: 0 auto;

}

.header_nav .header_nav_content {
    float: left;
}

.header_nav .logo {
    float: left;
    padding-top: 28px;
    margin-right: 180px;
}

.header_nav .e_nav {
    float: left;
    margin-right: 70px;
}

.header_nav .e_nav ul li {
    float: left;
    margin-right: 25px;
}

.header_nav .e_nav ul li a {
    color: #000;
    font-size: 16px;
    line-height: 110px;

}

.header_nav .header_search {
    float: left;
    line-height: 110px;
}

.header_nav .e_nav ul li a:hover {
    color: #ff6600;
}

.header_nav .header_search input {
    height: 55px;
}

.header_nav .items {
    display: none;

    width: 1290px;


}

.header_nav .items ul {
    width: 1290px;
    height: 180px;
}

.header_nav .items ul li {
    width: 200px;

    float: left;
    text-align: center;
    font-size: 14px;
}

.header_nav .items a {
    display: inline-block;
    width: 200px;
    height: 137px;
}

.header_nav .items ul li a img {
    width: 100%;
    height: 100%;
}

.header_nav .items ul li span {
    display: block;
    color: #323232;
}

.header_nav .items ul li i {
    color: #ff6600;
}